Answer:
48 out of 50 correct answers
The graph is a circle, centered at the origin, with radius=4.
We know that we can write the equation of a circle with radius r and center (a,b) as :

.
Thus, substituting (a, b) with (0, 0) and r with 4, we have:

.
The solutions of this equation are all the points forming the circle shown in the picture. The solutions of this equation are still the same even if we multiply both sides of the equation by 2, because rewriting the equation as:

,
we would still have the same roots.
Thus, the equation of the circle can be written as :

.
Answer: B
Step-by-step explanation:
<h2>Answer:-</h2>

Now, let's Solve!
So, according to Question,
Bill = 2x
Tim = 3x-3
Total Candies = 177.

Totalling x,




So, Fred has 30 candies.
Bill's Candies = 2×30 = 60 Candies
Tim's Candies = 3×30-3 = 90-3 = 87 Candies.
Hope it helps :)
Let w = the number of weeks you talked on your cell phone
60 min = 1 hr
60w + 250 = total number of minutes